\ifpackageavailable{pifont}
{
  \usepackage{pifont}

  \newcommand{\tickmark}{\textcolor{green}{\ding{51}}}
  \newcommand{\tackmark}{\textcolor{red}{\ding{55}}}
  \newcommand{\tuckmark}{\textcolor{orange}{\textbf{?}}}
}{}
